Pressure relief valve PV series

Pressure relief valves are designed to balance the positive or negative pressure inside silos or hoppers. Pressure relief valves work on the principle of the valve opening and letting out air in order not to damage the silo and silo top filter during material charge or discharge from the silo or hopper. OZB pressure relief valves offer a durable thermoplastic top cover, elevated position of cover and dust rejection spring bellows to prevent blockage of the valve and carbon steel or stainless steel connection elements. Thanks to new design of the discs the life time is extremely extended.